2 years ago

Describe why the periodic table needed to be reordered in 1913.

1 answer:

7 0

Answer:

1913. Henry Moseley determined the atomic number of each of the known elements. He realized that, if the elements were arranged in order of increasing atomic number rather than atomic weight, they gave a better fit within the 'periodic table'.

Explanation:

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Answer:

True i think.

Explanation:

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Explanation:

Heat Energy is given as

q= mCΔT

ehere

q= Heat energy = 87.4J

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ΔT = Change in temperate of which the final temperature= 25.0∘C

q= mCΔT

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But,

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3 years ago

Which contains the greatest mass of oxygen: 0.75 mol of ethanol (C2H5OH), 0.60 mol of formic acid (HCO2H), or 1.0 mol of water (

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Answer: formic acid (HCOOH) contains the greatest mass of oxygen

Explanation:Please see attachment for explanation

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3 years ago